If you loved Hakuouki: Warrior Spirit of the Blue Sky, try Lupin the Third: Blood Seal of the Eternal Mermaid
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

Hakuouki: Warrior Spirit of the Blue Sky
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Lupin the Third: Blood Seal of the Eternal Mermaid
What they share
Theysit in Action / Animation / Drama territory. If that's the register that drew you to Hakuouki: Warrior Spirit of the Blue Sky, the second film will land in a comparable space — through a different lens.
What Lupin the Third: Blood Seal of the Eternal Mermaid is
Lupin gets roped into yet another heist. The queen of the underworld orders Lupin to steal the Mermaid's Scale. It predictably gets complicated.